BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 39 52.7%
2 United States 10 13.5%
3 Netherlands 7 9.5%
4 Germany 4 5.4%
5 Canada 3 4.1%
6 Malaysia 3 4.1%
7 United Kingdom 2 2.7%
8 Japan 2 2.7%
9 Korea, Republic of 1 1.4%
10 Singapore 1 1.4%
11 Australia 1 1.4%
12 France 1 1.4%